 /*******************************************************************************
  * Copyright (c) 2000, 2005 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.ui.views.framelist;

 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.internal.views.framelist.FrameListMessages;

 /**
  * Generic "Go Into" action which goes to the frame for the current selection.
  */
 public class GoIntoAction extends FrameAction {

     /**
      * Constructs a new action for the specified frame list.
      *
      * @param frameList the frame list
      */
     public GoIntoAction(FrameList frameList) {
         super(frameList);
         setText(FrameListMessages.GoInto_text);
         setToolTipText(FrameListMessages.GoInto_toolTip);
         PlatformUI.getWorkbench().getHelpSystem().setHelp(this,
                 IFrameListHelpContextIds.GO_INTO_ACTION);
         update();
     }

     private Frame getSelectionFrame(int flags) {
         return getFrameList().getSource().getFrame(
                 IFrameSource.SELECTION_FRAME, flags);
     }

     /**
      * Calls <code>gotoFrame</code> on the frame list with a frame
      * representing the currently selected container.
      */
     public void run() {
         Frame selectionFrame = getSelectionFrame(IFrameSource.FULL_CONTEXT);
         if (selectionFrame != null) {
             getFrameList().gotoFrame(selectionFrame);
         }
     }

     /**
      * Updates this action's enabled state.
      * This action is enabled only when there is a frame for the current selection.
      */
     public void update() {
         super.update();
         Frame selectionFrame = getSelectionFrame(0);
         setEnabled(selectionFrame != null);
     }
 }

